Renamed libpcre -> pcre

We want to stay as close as possible to the name of the source
distribution.

core/Buildfile

@@ -14,7 +14,7 @@ depends=(acl
          kmod
          libcap
          libgcrypt
-         libpcre
+         pcre
          gdbm
          man-db
          ncurses

glib/Buildfile

@@ -6,7 +6,7 @@ name=glib
 version=2.48.1
 release=1
 source=(http://ftp.gnome.org/pub/gnome/sources/glib/${version%.*}/$name-$version.tar.xz)
-depends=(zlib libffi libpcre)
+depends=(zlib libffi pcre)
 
 build() {
    cd $name-$version

grep/Buildfile

@@ -6,7 +6,7 @@ name=grep
 version=2.25
 release=1
 source=(http://ftp.gnu.org/gnu/$name/$name-$version.tar.xz)
-depends=libpcre
+depends=pcre
 
 build() {
    cd $name-$version

libpcre/Buildfile → pcre/Buildfile

@@ -2,13 +2,13 @@
 # URL: http://www.pcre.org
 # License: BSD
 
-name=libpcre
-version=8.38
+name=pcre
+version=8.39
 release=1
-source=(ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-$version.tar.bz2)
+source=(ftp://ftp.csx.cam.ac.uk/pub/software/programming/$name/$name-$version.tar.bz2)
 
 build() {
-   cd pcre-$version
+   cd $name-$version
 
    ./configure --build=$BUILD \
                --host=$HOST \